Antiskid device



Aug. 23, 1923,

C. J. GAMPBELL ET AL ANTISKID DEVICE Filed Jan. 6,

maul

A TTORNEY Patented Aug. 28,. i923.

COLIN T. CAJYIPBELL, OF EAST ORANGE, NEW JERSEY, AND DANIEL CNEILL, OF NEW YORK, N. Y.

ANTISKID DEVICE.

Application filed January 6, 1923. Serial No. 611,023.

To a]? whom 2'2. may concern:

Be it known that we, Collin J. CAMP- ni-zri. and DANIEL ONEILL, both citizens of the United States, and residents of East ()range, in the county of Essex and State of 'li'ew Jersey, and of New York. in the county of New York and State of New York, re spectively, have invented certain new and useful Improvements in an Antiskid Device, of which the following is a full, clear and exact specification.

This invention relates to a class of devices adapted to be used for preventing skidding of vehicles when travelling.

Our invention has for its object primarily to provide a device designed, to be employed for overcoming the liability of vehicles, such as automobiles, autotrucks and the like, from skidding when travelling on slippery highways, and which is of a form especially adapted for use on elastic tires in a manner whereby the surface will he engaged for preventing the tires from tendency to skid in sidewise directions as well as being of a form serving to avoid the danger of cutting 0r prematurely wearing the tire. The invention consists essentially of a series of tread elen1e11ts-which are in relative spaced annular arrangement fol-being removahly applied on the tread portion of an elastic tire, and llese elements are connected together by an annular chain element, Each of the tread elements is provided with spaced arcuate ground grippers in relative suhstan tially rectangular arrangement, arid each gripper is preferably approximately square in cross section whereby the free lengthwise edges with the ends of one or more of the grippers will engage the surface when the tire with the vehicle tends to slide side- 'wise.

A further object of the invention is to pro vide an anti-skid device of a simple, ellicient and durable construct ion adapted to be made in ally appropriate size and shape.

v'ith these and other objects in view, the invention will be her inafter more fully explained with rel'crciice to the accompanying drawing forming a part or. this specilicatio i in which similar clmracters'of reference indicate corresponding parts in all the views, and will then be pointed out'in the claims at the end o the description.

1n the din win 9;. Figure 1 is a fragmentary view showing a front elevation of part of an elastic tire with parts of our improved anti-skid device applied thereto' Fig. 52 is an enlarged fragmentary view showing a plan of one of the tread elements of the device with portions of the connecting chains thereof.

r Fig. 3 is a. detail sectional view taken on the line 3-3 of Fig. 2, and

Fig. 4 is a detail sectional view taken on the line l--l of Fig. 2.

The device has a series of corresponding tread elements 10 which are disposed in spaced circumferential relation for being reinovably arranged on the tread portion of an elastic tire, as 11 of the wheel of a vehicle.

The tread elements 10 may he of appropri .ate sizes and shapes though each element is preferably composed of a body part or fiat plate 12 of substantially a rectangular shape of a size so that the plates of all of the elements will extend slightly sideivise beyond the tread portion of the tire when the device is applied thereon. The central parts of all of the edges of the plate 12 of each element is concavod. as at 1:), and in the central part of each plate may be an opening it for serviiu to discharge snow or mud when collected between the tire and the plates of the tread elements,

Protrnding from the outer face of the plate 12 of each ofithe tread elements at the edge of the concavities ii) of each plate are corresponding arcn'ate ground grippers, as 15. The ground grippers of each plate are in the forms of flanges of preferably sub stantially rectangular shapes in cross sections, and these flanges of each plate may be of lengths and curvatures conforming to the curvatures and lengths of the concavities of the plate.

The ends of the ground grippers or flanges 15 of each tread element are therefore spaced apart, andextending from the corners of the plate of each element nhay be apertured lugs or eyes. as 16. disposed in relative crosswise arraugmncnt. The holes through these lugs extend crosswise through the free end portions of the lugs. and in the apertures of the lugs of the body, partor plate 12 of each tread element are niovably'held one of the ends ol' links or rings, as 17. These links to the linlisrii at; ill

edge oi is}; of the pl of the tread slemeni's 10 by two shori; raisins, as 22, 23, and the member 321 of the chain element is contwn shornclmins, 15 applied in n, are disposed upon the annular in. the tread elements 10 being disposed on trend portion of the lire.

The chain ine? *srs 22, 23, and 24-; 25 nrosswiss relatively of ich resnect to the trend that his lengthwise edges v: 0m 0:- nmra of the grown! h, of one or more of the f: hurl. nlemsnfrs will engage the surface 055 the highway far pr'veni-ing the vehicle when Unveiling from slf'isliiing in sirlewise cliriafiiiions. Mcreovsr, by r p0sing thcshort chains 22 23 and in radial directions the read elements 10 will be held on the tire snrlsncy "no accidentally shift on the therefore, we resvrve to ourselves the right,

to make such Changes as fairly fall Within the scope thereof.

Having lhus described our invention, We claim as new and (lesira t0 seem-s by filictrers Patanrz l. A tr-cad elsinent for an comprising a. substantially racial! plate witlithe central parts of its ing COIH'EU'Qd and having prnirwili one of its fares at its caricnrml all; 6 each zn'i znhir in cross secrimn and inner lugs extcnrling; from the corners plain.

2. A trend. elemens 1 02' an in comprising a substantially recisnigulw' plate with an bpsning in its (Jill/31 and. ham" ing the (*Pnlral parts of its srlgg cs QfEQCEi-YQ-(l, curved rorrospmnling flanges. ch. FiebSiu tially rectangular in cross saction, arch-rming from one of 116 faces of the plate at its concavecl edges, aperturecllugs dispesed in. relative crcsswise arrangement exreniiingr from the corners 6f the plate snrllinks movably mounted in the aper znres of the lugs of the plate.

This specification signer! witnessed this 5th day of January, A. ll).

COLIN J. CAhiPBELL. DANIEL GNEHAL.

Witnessps R. l ELDMAN, J. FREDERICK Ciwnn. 

